Find the value of x
A.)20
B.)55
C.)70
D.)38

Answer:
A.) 20
Step-by-step explanation:
These angles are complementary meaning they add up to 90°.
4x - 10 + x = 90
5x - 10 = 90
5x = 100
x = 20
Answer:
Hello! answer: x = 20
Step-by-step explanation:
This is a complementary angle meaning it will add up to 90 degrees so...
20 × 4 = 80 80 - 10 = 70
70 + 20 = 90 therefore x = 20